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Through personal CSS and JavaScript, you can change the way Fandom looks and behaves. Things like fonts, colors, and positions of page elements can be altered. However, it will only affect the way that you see Fandom when you're logged intoyour account, and you have to make alterations to a few, specific user pages, as well as one account preference.

JavaScript

You must manually enable personal JS in your preferences before you'll be able to see the effects of changing your personal JS. Please understand the implications of turning the feature on by reading all the notes below. The option can be found on the Under the Hood tab, under Advanced display options.

Troubleshooting

Just add ?useusercss=0 or ?useuserjs=0 to the end of your current URL. ?useusercss=0 temporarily removes all styles applied into your personal stylesheet(s), and ?useuserjs=0 temporarily removes all scripts applied into your personal JavaScript page(s).

(The same can be done with community CSS and JS for individual wikis, using ?usesitecss=0 or ?usesitejs=0.)